6501249052 has 12 divisors (see below), whose sum is σ = 11378190096. Its totient is φ = 3250337600.

The previous prime is 6501249047. The next prime is 6501249107. The reversal of 6501249052 is 2509421056.

It is a happy number.

It is a super-2 number, since 2×6501249052² = 84532478472261797408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6501248999 and 6501249017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15928 + ... + 115135.

It is an arithmetic number, because the mean of its divisors is an integer number (948182508).

Almost surely, 2^6501249052 is an apocalyptic number.

It is an amenable number.

6501249052 is a deficient number, since it is larger than the sum of its proper divisors (4876941044).

6501249052 is a wasteful number, since it uses less digits than its factorization.

6501249052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143468 (or 143466 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 6501249052 is about 80630.3234025512. The cubic root of 6501249052 is about 1866.3751117915.

The spelling of 6501249052 in words is "six billion, five hundred one million, two hundred forty-nine thousand, fifty-two".